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  <title>Description of filter_gabor_1D</title>
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<h1>filter_gabor_1D
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<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>1D Gabor Filters.</strong></div>

<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>function [feven,fodd] = filter_gabor_1D( r, sig, omega, show ); </strong></div>

<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> 1D Gabor Filters.

 Creates a pair of 1D Gabor filters (even/odd).

 INPUTS
   r       - final mask will be 2r+1 (good choice for r is r=2*sig)
   sig     - standard deviation of Gaussian mask
   omega   - frequency of underlying sine/cosine 
             should range between 1/(2r+1) and r/(2r+1)~.5 
             otherwise false frequencies form
   show    - [optional] figure to use for display (no display if == 0)

 OUTPUTS
   feven   - even symmetric filter (-cosine masked with Gaussian)
   fodd    - odd symmetric filter (-sine masked with Gaussian)

 EXAMPLE
   tau = 5; filter_gabor_1D(2*tau,tau,1/tau,1);

 DATESTAMP
   29-Sep-2005  2:00pm

 See also <a href="filter_gabor_2D.html" class="code" title="function [Feven,Fodd]=filter_gabor_2D(r,sig,lam,theta,show)">FILTER_GABOR_2D</a></pre></div>

<!-- crossreference -->
<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
This function calls:
<ul style="list-style-image:url(../matlabicon.gif)">
<li><a href="filter_visualize_1D.html" class="code" title="function filter_visualize_1D( f )">filter_visualize_1D</a>	Used to help visualize the a 1D filter.</li></ul>
This function is called by:
<ul style="list-style-image:url(../matlabicon.gif)">
<li><a href="FB_make_1D.html" class="code" title="function FB = FB_make_1D">FB_make_1D</a>	Various ways to make filterbanks.  See inside of this file for details.</li></ul>
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